19278945

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{887}}^1$

素因数の和:931

約数の個数: 64

約数和(自身を含む): 40919040

約数和(自身を除く): 21640095

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 63, 69, 105, 115, 135, 161, 189, 207, 315, 345, 483, 621, 805, 887, 945, 1035, 1449, 2415, 2661, 3105, 4347, 4435, 6209, 7245, 7983, 13305, 18627, 20401, 21735, 23949, 31045, 39915, 55881, 61203, 93135, 102005, 119745, 142807, 167643, 183609, 279405, 306015, 428421, 550827, 714035, 838215, 918045, 1285263, 2142105, 2754135, 3855789, 6426315, 19278945]

約数ペア:

[(1, 19278945), (3, 6426315), (5, 3855789), (7, 2754135), (9, 2142105), (15, 1285263), (21, 918045), (23, 838215), (27, 714035), (35, 550827), (45, 428421), (63, 306015), (69, 279405), (105, 183609), (115, 167643), (135, 142807), (161, 119745), (189, 102005), (207, 93135), (315, 61203), (345, 55881), (483, 39915), (621, 31045), (805, 23949), (887, 21735), (945, 20401), (1035, 18627), (1449, 13305), (2415, 7983), (2661, 7245), (3105, 6209), (4347, 4435)]